ACT — Brassica oleracea var. botrytis

Summary

BoACT, encoded by the gene ACT on cauliflower chromosome 5, is a structural constituent of the cytoskeleton belonging to the actin/actin-like family and possesses ATP binding, hydrolase, and protein binding activities. In cauliflower, BoACT is associated with actin gel formation, root epidermal cell differentiation, root hair tip growth, responses to high light intensity, red and far-red light, and cytokinin, as well as circadian rhythm. It localizes to the actin cytoskeleton, cytosol, cytoplasm, nucleus, and the Cul4-RING E3 ubiquitin ligase complex. BoACT is linked to photosynthetic rate, root morphology, actin filament stability, cytoplasmic streaming, cell elongation, auxin distribution, lateral root formation, root hair development, and plant fitness. Related genes in other species are linked to actin filament organization, vegetative growth, and light stress response.